This document provides an overview of Infrastructure as a Service (IaaS) and Microsoft Azure. It defines IaaS as a cloud computing model that provides on-demand access and scaling of fundamental computing resources like storage, networking, and processing power. It then describes Azure as a leading IaaS platform that allows organizations to outsource their IT infrastructure to Azure's cloud, reducing costs and improving flexibility and scalability compared to maintaining physical hardware. Finally, it discusses how trends like edge computing and AI will further enhance the capabilities of IaaS platforms in the future.